Hi Jacko and welcome,
Is it still txt edit and cli, or is there nice ide? I don't mind a nice text ide, but...
Not sure if i fully understand the first part fo your message there because isn't developing about entering text into an editor (txt edit as you refer to it) and then compile it (invoking a compiler usually in the form of a command-line executable) ?
There are some nice (programmers) editors around like
Annotate,
Murks, and
Vim. They do need a bit of work to setup to your likings though.
Fpc?
Yes, there is FP ide (the textual interface stuffed into an intuition window), and ALB has a
nice example editor named EdiSyn.
C?
Try one of the 3 first mentioned editors as they all support c-language (Edisyn does as well with a bit of work).
JS in OWB?
In case the question is if OWB supports javascript then the answer to that is yes. The jit compiler can be a bit flacky at times though. Always turn that off in case you are experiencing problems.
I may even be interested in making a simple ide or using free pascal (there is talk of a port)...
Free Pascal was (re)ported to Amiga, MorphOS and AROS years ago, and AROS is (officially) supported since verion 3.0 release of the compiler.
Try ALB's blog ;-)
Interesting to see what might perhaps be able to spike your interest... feel free to let us know.